Jenes, B., M. Puolimatka, P. Bittencourt, and S. Pulli. “Time Saving Method for Protoplast Isolation, Transformation and Transient Gene Expression Assay in Barley”. Agricultural and Food Science, vol. 3, no. 2, Mar. 1994, pp. 199-05, doi:10.23986/afsci.72695.